procedural-3d-engine/shaders/glsl/base/textoverlay.frag

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#version 450 core
layout (location = 0) in vec2 inUV;
layout (binding = 0) uniform sampler2D samplerFont;
layout (location = 0) out vec4 outFragColor;
void main(void)
{
float color = texture(samplerFont, inUV).r;
outFragColor = vec4(vec3(color), 1.0);
}